Perforation device for wall-paper.



S. E. WHISNER. PERFORATION DEVICE FOR WALL PAPER. APPLICATION FILED MAR.1, 1913.

1,072,890, Patented Sept. 9, 1913.

SAMUEL WHISNER, 0F VERONA, PENNSYLVANIA.

PERFORATION DEVICE FOR WALL-PA3ER.

Specification of Letters Patent.

Patented Sept. a, fare.

Appfication filed March 1, 1913. Serial No. 751,458.

ToaZZ w/lma itmag concern: 1

Be it known that I, SAMUEL 111. WI-IISNER, a citizen of the United States of America, residing at Verona, in the county of Allegheny and State" of Pennsylvania, .have invented certain new and useful Improvements in Perforation Devices for Wall- Paper, of which the following is a specifi' cation, reference being bad therein to the accompanying drawing.

This invention relates to a perforating device for wall paper, and the primary object of my invention is to provide an electrically operated device that permits of the border of wall paper being easily and quickly perforated whereby the useless paper can be easily removed, thereby obviating the tedious and tiresome task of cutting out the border with scissors or a pen. knife.

A. further object of this invention is t provide a simple, durable and inexpensive perforating device embodying an electromagnetwhich has the armature thereof provided with a detachable perforating needle located so that a border paper can be passed beneath the needle and the outline of a border perforated.

With the above and other objects in view the invention resides in the novel construction, combination and arrangement of parts to be hereinafter specifically described and then claimed.

Reference will now be had to the drawing, wherein:--

Figure 1 is a perspective view of the perforating device, Fig. 2 is a longitudinal sectional view of the same, Fig. 3 is a cross sectional view of the device, and Fig. i is a longitudinal sectional view of a modified form of device.

A device in accordance with this invention comprises a box-lil o metallic casing 1 provided with a detachable bottom plate 2, said bottom plate being flanged, as at 3 whereby it can be secured to the side walls of the easing by screws at or other fastening means. Located upon the bottom plate 2, within the casing l, and insulated from said bottom plate is an electro-magnet 5 and pivotally connected to said electro-magnet, as at 6 is a longitudinal armature 7 that extends through an opening 8 provided therefor in the front wall 9 of the casing l. The outer end of the armature is bent downwardly, as at 10 and provided with a socket 11 for an adjustable perforating needle 12.

The needle 12 is adjusted through the me" dium of a set screw 13, which also permits of the needle being removed Whendull or broken. The top 14 of the casing 1 has an opening 15 and this opening provides clearance for a tension screw 16 that controls the vibrations of the armature 7. The side walls of the casing 1 are provided with binding posts 17 whereby suitable electrical connections can be made with the,electro-magnet 5 from a suitable source of electrical energy. The front wall 9 of the casing 1 has the lower edge thereof provided with parallel guides 18 having the forward ends thereof bent upwardly, as at 19 whereby border paper can be placed beneath said guide arms and easily moved and shifted beneath the perforating needle 12. In some instances the device can be shifted over the border paper and in either instance the perforating is expeditiously and economically performed.

In Fig. l of thcdrawing the eleztro-mag net is supported from the top of the casing l and the armature arranged beneath said elect-ro-magnet, thereby obviatin the necessity of bending the outer end 0 the ar1nature in proximity to the bottom of the casing. In other'words it is simply a reversal of the parts within the casing 1 shown in Fig. 2 with the exception of the armature.

hen using the device, the operator grasps the casing 1 and moves it longitudinally of-the paper to perforate the latter at the border whereby the portion of the paper not desired can be readily severed. Suitable electrical connections are provided to alternately energize and deinergize the magnets to reciprocate the perforating needle 12.

The preferred embodiments of the invention have been illustrated but it is to be 1111- derstood that the structural elements are susceptible'to such variations and modifications as fall within the scope of the appended claims.

What I claim is 1. An electrical perforating device comprising a casing having one end provided with an opening, a pair of magnets arranged within said casing, an armature projecting through said opening and having each of its ends bent in angular manner, said inner angular end projecting toward one of said magnets, a pin for pivotally connecting said inner angular end to that magnet toward which it projects, a short needle connected in m outer angular end of The ni'nmture, and a pair of spaced guide rods secured to lint end f the casing [)IUrlilfill with the opening at the bottom of said end.

2. An electrical perforating device c0m prising a casing having one end provided Willi an opening-1L pair of magnets arranged within said casing, an armature pn'ijecling tlneu'gh sairl opening and having each of ends bent in an angular manner, Sillil inner angular end projecting toward one of sail magnets, :1 pin for pix-wildly conzweting :mi l innunminlnr enrl [0 that nmgnel to 1 Ward which it projects, a short needle connected to the eater angular end of the :n'maini'e, and a pair (if spaced guide rods seem-ed to that end if the casing provided with the opening at the bottom nf said end, the free ends of said TOl lS curving inwardly.

In testimony whereof .I nliix my signature in the presenceol. two witnesses.

S AMUEL F. W HT SN I") R;

I Witnesses l Kix'iimn IN I: Ennn'mi. 

